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Sicherheit: DOS-Attacke auf squid
Aktuelle Meldungen Distributionen
Name: DOS-Attacke auf squid
ID: TLSA2002003
Distribution: TurboLinux
Plattformen: Keine Angabe
Datum: Sa, 26. Januar 2002, 12:00
Referenzen: Keine Angabe
Applikationen: Squid

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___________________________________________________________________________

Turbolinux Security Announcement

Package : squid
Vulnerable Packages: All versions previous to 2.4.STABLE2-2
Date: Thu Jan 24 18:32:20 PST 2002

Affected Turbolinux versions:TL 6.x,
All Turbolinux versions
2.4.STABLE2-1 and earlier

Turbolinux Advisory ID#: TLSA2002003

Credits: Vladimir Ivaschenko
http://www.squid-cache.org/bugs/show_bug.cgi?id=233
___________________________________________________________________________

A security hole was discovered in the package mentioned above.
Please update the package in your installation as soon as possible.
___________________________________________________________________________

1. Problem Summary

Squid has a flaw in the code to handle FTP PUT commands: when a mkdir-only
request was done squid would detect an internal error and exit.
Squid script cannot use the restart command. Because when stop command
isn't finished, start command is started.

2. Impact

Vulnerable.

3. Solution

Update the package from our ftp server by running the following command:

rpm -Uvh ftp://ftp.turbolinux.com/pub/updates/6.0/security/<rpm>

Where <rpm> is the following:

squid-2.4.STABLE2-3.i386.rpm

The source RPM can be downloaded here:

ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/ squid-2.4.STABLE2-3.src.rpm

**Note: You must rebuild and install the RPM if you choose to download
and install the SRPM. Simply installing the SRPM alone WILL NOT CLOSE
THE SECURITY HOLE.

Please verify the MD5 checksums of the updates before you install:

MD5 sum Package Name
---------------------------------------------------------------------------
8d163dfdb90a42c46a5c169b2dc0d4f4 squid-2.4.STABLE2-3.i386.rpm
c7ee0677b88db07507fbde69b696bec1 squid-2.4.STABLE2-3.src.rpm
___________________________________________________________________________

These packages are GPG signed by Turbolinux for security. Our key
is available here:

http://www.turbolinux.com/security/tlgpgkey2002-01-09.asc

To verify a package, use the following command:

rpm --checksig name_of_rpm

To examine only the md5sum, use the following command:

rpm --checksig --nogpg name_of_rpm

**Note: Checking GPG keys requires RPM 3.0 or higher.

___________________________________________________________________________
You can find more updates on our ftp server:

ftp://ftp.turbolinux.com/pub/updates/6.0/security/ for TL6.0 Workstation
and Server security updates
ftp://ftp.turbolinux.com/pub/updates/7.0/security/ for TL7.0 Workstation
and Server security updates

Our webpage for security announcements:

http://www.turbolinux.com/security

If you want to report vulnerabilities, please contact:

security@turbolinux.com
___________________________________________________________________________

Subscribe to the Turbolinux Security Mailing lists:

TL-security - A moderated list for discussing security issues
Turbolinux products.
Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security

TL-security-announce - An announce-only mailing list for security updates
and alerts.
Subscribe at:

http://www.turbolinux.com/mailman/listinfo/tl-security-announce
___________________________________________________________________________


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